Seven New AC Items with Variable-Velocity Compressors – Builder Journal

The entire latest and most effective air conditioners and warmth pumps from the trade’s main firms and types have one factor in widespread – a variable-speed compressor.

Not like single-speed and even double-speed techniques, a variable-speed compressor can exactly and mechanically alter its vitality use and output based mostly on the distinction between the thermostat setpoint and exterior situations. Jon Winkler, senior analysis engineer at Nationwide Renewable Power Laboratory, says variable-speed know-how permits cooling techniques to modulate the compressor pace to higher hone in on the cooling load of the house with out having to cycle on and off.

“Typical air-conditioners cycle on and off to fulfill cooling load, whereas variable pace techniques can alter the compressor pace to completely match the house situation.” he says. “That is the place the actual vitality financial savings are as a result of variable-speed techniques have increased efficiencies at part-load situations.”

Along with vitality financial savings, the longer and slower operation of variable-speed know-how permits for quieter operation and higher, extra constant airflow to elements like air purifiers and humidifiers, which might additional improve general air high quality and luxury, Winkler provides. That is particularly useful to householders dwelling humid areas that always cope with condensation build-up and ground warping.

The seven whole-home central air models and warmth pumps under even have most Seasonal Power Effectivity Ratio (SEER) scores of 19.5 or above, and most are Power Star Most Environment friendly licensed.

Many additionally incorporate good management performance, whether or not via a related app or good thermostat. This enables residence house owners to exactly alter their residence’s temperature from wherever on the planet, and to combine their air handler into their chosen good residence community.


The Amana AVXC20 Air Conditioner provides as much as 24.5 SEER energy-efficiency efficiency and a cooling capability of as much as 23,600-53,000 BTU/h, relying on the unit mannequin. It contains a high-efficiency variable pace inverter know-how compressor, high-efficiency variable pace ECM condenser fan motor, and a high-density foam compressor sound blanket and sound management high. The unit meets the 2010 Florida Constructing code unit integrity requirement for hurricane-force winds, and carries a lifetime unit alternative restricted guarantee and 10-year restricted guarantee on elements.


The Infinity 20 Air Conditioner with Greenspeed Intelligence provides as much as 20.5 SEER and 15.5 EER energy-efficiency efficiency. The Greenspeed intelligence system matches the efficiency of the unit’s variable-speed compressor to the wants and situations of the house, which permits the unit to function near-continuously and function a dehumidifier through the summer season months.

The Infinity 20’s compressor sound blanket and silencer system allow sound output is as little as 58 decibels. It makes use of non-ozone-depleting Puron as a refrigerant.


The Coleman Echelon AC21 Two-Stage Air Conditioner carries an Power Star Most Environment friendly score at 20 SEER, and makes use of inverter-driven variable capability know-how to regulate operation pace based mostly on a given residence’s situations and cargo necessities. Options embody a show of refrigerant pressures and system cost standing on the nook of the unit, sound containment system, and EcoTrak nice blower operation management. The Echelon AC21 seamlessly integrates with the agency’s Echelon Hx thermostat, which permits residence house owners to manage any built-in techniques through smartphone or wall-mounted contact display.


The XV19 TruComfort Variable Velocity Low Profile Warmth Pump operates at as much as 19.5 SEER, 13.0 EER and 11.5 HSPF. It’s designed for ultra-quiet operation, with minimal/most sound stress ranges of 43 to 57 db(A). Its TruComfort know-how permits for fine-tuned management with 300 to 700 phases or speeds, relying on its tonnage.

With a most depth of 18 inches, the unit is appropriate with zero lot line purposes. Copper tubing and aluminum fin coils are included as customary, with epoxy-coated coils accessible for installations inside 1 mile of saltwater.


With a SEER score of 26, the Lennox XC25 Excessive-Effectivity Air Conditioning System has been acknowledged as some of the environment friendly Power Star licensed merchandise of 2017. The system permits householders to regulate the unit’s output in increments as exact as 1%, and Local weather IQ know-how permits the XC25 to mechanically alter its airspeed and output in response to local weather situations. The system is put in with the corporate’s iComfort good thermostat, and could also be mixed with SunSource photo voltaic modules to scale back family cooling payments.


The RA20 Status Sequence Air Conditioner provides a minimal of 20 SEER and 13 EER energy-efficiency and system efficiency throughout all fashions, and is EcoNet, Power Star, and AHRI licensed. The unit’s variable pace compressor mechanically adjusts its pace and output based mostly on altering outside situations, and might assist an overdrive cooling load of as much as 107 levels Fahrenheit. The cupboard is designed with curb enchantment in thoughts, with a composite base pan that serves to dampen sound and resist corrosion. Owners could management their RA20 unit via Rheem’s EcoNet Good House System.


The DZ20VC unitary warmth pump system incorporates Daikin’s “Daikin Inside” variable-speed inverter scroll compressor, which supplies as much as 21 SEER and as much as 10 HSPF of vitality efficiency. The inverter scroll compressor design incorporates fewer transferring elements than comparable system so as to present dependability and scale back general noise. Daikin Inside Intelligence persistently displays the system for points, and supplies customers and contractors with detailed diagnostic info when obligatory. Its increase mode, which is field-selectable, offers customers the choice to mechanically enhance the unit’s compressor pace throughout unusually excessive operation hundreds.

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